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Ukuhlola izibonelelo zokusebenzisa i-HDPE Geomembrane kwiTheyibhile yoBunjineli boLuntu 2. Iyintoni i-HDPE Geomembrane? 3. Izibonelelo eziphambili ze-HDPE Geomembrane kubunjineli boLuntu Ukunceda 3.4 Ukhuseleko lokusingqongileyo 3.5 Ukufakelwa okulula kunye